Фізико-хімічні та фотокаталітичні властивості V-Mg оксидних композицій, синтезованих різними методами
New approaches to vanadium-magnesium oxide catalysts synthesis have been proposed: using of mechanochemical (MChT), hydrothermal (HTT), and microwave (MWT) treatments; and V2O5 gel as initial reagent. XRD, DTA-TG, FTIR and UV-Vis spectroscopy, adsorption of nitrogen have been used for study of precu...
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| Datum: | 2013 |
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| Hauptverfasser: | , , , , |
| Format: | Artikel |
| Sprache: | Ukrainian |
| Veröffentlicht: |
Chuiko Institute of Surface Chemistry National Academy of Sciences of Ukraine
2013
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| Online Zugang: | https://www.cpts.com.ua/index.php/cpts/article/view/205 |
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| Назва журналу: | Chemistry, Physics and Technology of Surface |
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Chemistry, Physics and Technology of Surface| Zusammenfassung: | New approaches to vanadium-magnesium oxide catalysts synthesis have been proposed: using of mechanochemical (MChT), hydrothermal (HTT), and microwave (MWT) treatments; and V2O5 gel as initial reagent. XRD, DTA-TG, FTIR and UV-Vis spectroscopy, adsorption of nitrogen have been used for study of precursors and catalysts structure. Magnesium methavanadate MgV2O6·2H2O with high specific surface area transformed into orthovanadate Mg3V2O8 – pyrovanadate Mg2V2O7 mixture is formed as a result of MWT and HTT. The sample prepared from microwave precursor possesses the highest specific surface area, developed porous structure, and maximum photocatalytic activity under visible light on safranin T degradation in aqueous medium. |
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